Overlapping markers can be separated by clicking on them.
Hovering the cursor over a marker will show the site's name.
Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
Isskär, Finland
latitude: 59.824799
longitude: 23.1984
Precision of location: Gauged from chart or map
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Gieysztoria cuspidata | Jul 24, 1951 | Inseln Isskär, Spikarna. Wassertemp 28º C. | ||
| Castrella truncata | 1955 or earlier |